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Peter Mahon (judge)

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For other people named Peter Mahon, see Peter Mahon (disambiguation).
The Honourable
Peter Mahon
QC
Judge of the High Court
In office
1971–1982
Personal details
Born
Peter Thomas Mahon

(1923-11-01)1 November 1923
Christchurch, New Zealand
Died11 August 1986(1986-08-11) (aged 62)
Auckland, New Zealand
Spouse
Margarita Carole Smith
​
​
(m. 1952)​
RelativesSam Mahon (son)
OccupationLawyer
Known forRoyal Commission of Inquiry into the crash of Air New Zealand Flight 901

Peter Thomas Mahon QC (1 November 1923 – 11 August 1986) was a New Zealand High Court judge. He led a Commission of Inquiry into the 1979 crash of Air New Zealand Flight 901 into Mount Erebus.

Early life and family

Born in Christchurch on 1 November 1923, Mahon was the son of Agnes Helen Mahon (née Tankard) and Cecil Owen Mahon. He was educated at St Bede's College and went on to study law at Canterbury University College from 1940.[1]

After two years at university, Mahon enlisted in the 2nd New Zealand Expeditionary Force, seeing active service in Italy and rising to the rank of second lieutenant, and then serving in J Force after the end of the war. He subsequently returned to complete his Bachelor of Laws degree and was admitted to the bar in 1947.[1]

Mahon began his legal career with the Raymond, Donnelly & Co. He was mentored by Sir Arthur Donnelly. Mahon was junior counsel for the prosecution in the Parker–Hulme murder case in 1954. At the commencement of the trial Mahon was assisting Alan Brown. Brown withdrew during the trial and was later admitted to Sunnyside Hospital.[2]

Erebus inquiry

After the crash of Air New Zealand Flight 901 with loss of all aboard on 28 November 1979, New Zealand's official accident report was released by the Chief Inspector of Air Accidents, Ron Chippindale, which cited serious pilot error as the chief cause of the accident. Public demand led to the formation of a Royal Commission of Inquiry into the accident. Mahon produced his report on 27 April 1981, which cleared the crew of blame for the disaster and found that the major cause was the reprogramming of the aircraft's navigation computer without the crew being notified. Mahon claimed that Air New Zealand executives had engaged in a conspiracy to whitewash the inquiry, covering up evidence and lying to investigators, and concluded that they had told "an orchestrated litany of lies". His book, Verdict on Erebus, an account of his inquiry, won the New Zealand Book Awards prize for non-fiction in 1985.[3] Mahon retired from the High Court bench in 1982.

In 1983 the Judicial Committee of the Privy Council held that Mahon had made serious mistakes of law through acting in excess of his jurisdiction and in breach of natural justice by going on to make findings of a conspiracy by Air New Zealand to cover up the errors of the ground staff. This conclusion was reached on the point of law that those accused of the conspiracy had not been given an opportunity to contest it in Mr Justice Mahon's inquiry: his conclusions that documents had been suppressed, and that witnesses had lied, were not set aside as an appellate court is not permitted to investigate findings of fact.

In 1985 Mahon was appointed as Commissioner of Inquiry into the 1984 Queen Street riot. In the same year he published Dear Sam, a collection of his letters to his children. He died of heart failure in August 1986.[4]

In 1999 Transport Minister Maurice Williamson tabled Mahon's findings in parliament. His report had not previously been officially accepted as the verdict on the Erebus tragedy. In 2008, Mahon was posthumously awarded the Jim Collins Memorial Award by the New Zealand Airline Pilots Association for exceptional contributions to air safety, "in forever changing the general approach used in transport accidents investigations world wide."[5] In the 1988 TVNZ dramatisation of the inquiry, Erebus: The Aftermath, Mahon was played by Frank Finlay.

See also

References

  1. ^ a b Morris, Grant. "Mahon, Peter Thomas". Dictionary of New Zealand Biography. Ministry for Culture and Heritage. Retrieved 13 September 2020.
  2. ^ Mahon, Sam. My Father's Shadow, A portrait of Justice Peter Mahon. Longacre Press, 2008, p. 124.
  3. ^ "A son's sketch of Peter Mahon". The Press. 15 August 2008. Retrieved 7 September 2014.
  4. ^ "Hon Peter Mahon QC, 1924 – 1986". New Zealand Law Society. Retrieved 7 September 2014.
  5. ^ "Mahon posthumously awarded". 1 December 2008.

Publications

  • Verdict on Erebus, Collins, 1984, ISBN 0-00-217213-5
  • Dear Sam, Fontana/Collins, 1985, collection of letters to family and friends
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